Ophthalmic mounting



June 15, 1937. c. w. JOHNSON v QPHTHALMIC MOUNTING Original Filed Nov. 28, 1934 INVENTOR. Jo'lzo'zz Patented June 15, 1937 wenn ATEN'i` OPHTHALMIC MOUNTING Charles W. Johnson, South Attleboro, Mass., as-

signor to Sadler Bros. Inc., a corporation of Massachusetts Application November 28, 1934, Serial No. 755,154 Renewed May 7, 1937 6 Claims.

This invention relates to an ophthalmic mounting and pertains more particularly to a mounting for a nose pad; and the invention has for one of its objects the provision of a nose pad which will rock longitudinally of this pad and be prevented from any appreciable lateral rocking movement.

Another ob-ject of the invention is the provision of a construction for mounting the nose pad by Which the pad may be readily detached from its supporting arm and the pad repaired or another pad substituted therefor.

Another ob-ject of the inventio-n is the pro- Vision of a means by which the extent of longil5 tudinal rocking movement of the: pad can be governed and nicely controlled.

Another object of the invention is the provision of a suitable shaping of the supporting arm so as to provide a smooth rocking and fitting of the *2"0 arm and pad.

25 vrosionvmay take place.

A still further object of the invention is the simplification of the, construction, whereby the manufacturing costs are reduced to the minimum.

With these and other objects in view, the in- Vention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claims.

In the accompanying drawing:

Fig. 1 is a fragmental perspective View of a portion of an ophthalmic mounting, showing a nose pad in. the position which it assumes in relation to the rim and bridge.

Fig. 2 is a plan view of the nose pad and sup-- porting arm attached thereto.

Fig. 3 is a sectional view on line 3-3 of Fig.,2.

Fig. 4 is a side elevation of the nose pad and arm illustrating in, full lines one relative position of these parts and in dotted lines another position of these parts.

Fig. 5 is a side elevation of the pad and tongue partially bent.

Fig. 6 is a perspective View of the arm.

LA Figs. 7, 8 and 9 are top plan views of varying forms of arms showing diierent modications of arrangements ofthe openings andrecesses therein.

Fig. 10 is a sectional view' thru the arm and 55 pad, the arm being of the type shown in Figl'.

Y Fig. l1 is a sectional View similar to Fig. 10, showing the arm as illustrated in Fig. 8.

Fig. 12 is a sectional view similar to Fig. 10, showing the arm as illustrated in Fig. 9 and a different form of tongue.

Fig. 13 is a sectional View thru a modified form of pad tongue.

Fig. lll'is a plan View of Fig. 13.

Fig. l5 isa plan view of a pad showing the arm mounted in a direction different from that shown in the remaining figures.

Fig. 16 is a sectional View on line It-l 6 o Fig. 15.

Fig. 17 is a sectional View or" a modified form of bending of the tongue of the pad.

Y Fig. 18 is a section of the: arm showing the plate covering the stock.

In the use of nose pads for ophthalmic mountings, it is desirable that some rocking motion be permitted in order that the nose pad may adjust itself to the face oi the wearer. Such rocking motion as occurs should occur longitudinally of this nose pad rather than laterally thereof and thus it is desired to limit the lateral movement of the pad. Further, in the customary mounting corrosion exists to a considerable extent between the post or stud extending from the rear o the pad and the opening thru the arm, which opening is pierced to expose some base metal not protected by the outer gold or other precious metal plating. This corrosion frequently occurs to such an extent that the pad may rotate about its stud as a center and should such a condition oc.- cur, it is desirable to take oli the pad and replace it with a new one which will be restricted in its movements as desired. And in order that these undesirable conditions may be prevented and the movement governed in the desired manner and also that the pad may be `easily inten changeable, have reduced the exposure of base metal by providing a bendalole plated tongue on the pad which may extend thru an opening in the supporting arm and there be bent into a re cess to retain it in position. This recess is adj acent to the opening thru which the tongue extends so that the tongue may lodge therein and assist in preventing lateral rocking of the pad. This tongue also provides a means. due to the bending thereof by which the extent of rocking may be governed and nicely controlled; and the following is a more detailed description of the present embodiment of this invention illustrating the preferred means by which these advantageous results may be accomplished:-

With reference to the drawing, 2c designates stock and provided Vwith a spoon-shaped end 21 having a longitudinal slotcr recess 28 pressed therein. At one point along this recess an opening 29 is provided extending thru this spoonshaped end 2l' of the arm and thru this opening V29 the tongue extends and is bent as at 30 so that its end 3| .extends into the recess 28 and v assists in preventing the rocking or turning of the pad about the tongue as a center.

- I'he tongue 2S is of a width considerably greater than its thickness and the opening 29 is of a corresponding shapeV so that rotation about the tongue as a center would be prevented. However, with the end of the tongue extending into and closely tting the recess 28 and contacting with the recess at a point distant from the opening lateral rocking Vis prevented altho longitudinal rocking is permitted, which is highly desirable. In orderfto govern the amount of longitudinal rocking between the pad and its arm, I nick the arm as at 32 to determine the point 0f bending, or this may occur by partially bending the tongue at a point spaced from the back of the pad, in order that the desired rocking movement may occur. In use,VV the end 3| of the tongue will be bent down rather tightly against the spoon-shaped-end of the arm so that this end will serve as a pivot point and there will be longitudinal play or rocking movement determined by the extent of the portionV extending perpendicularly from the back of the pad and between the pad back and the bend at whatever point the bending occurs.

Another method oi governing the amount of longitudinal rock would be to bend the tongueY sharply over the edge ofthe opening 29, as in Fig. 17, at 69, and then allow the free end`3| of the tongue to govern the amount of rock about the opening as a pivot, from the full line position to the dotted line 'position in Fig. 17. I, however, prefer the former method of governing as will better control the lateral rocking and prevent rotation should corrosion occur.

' In Fig. 13, I have shown a modiedrformrof tongue, which consists of a ribbon of sheet stock bent upon itself as at 35, and then again as at 36 and 31, to provide a core portion 38 to beeinon opposite sides of the opening 45. Y

Other modiications may consist of providing Villustrated in Fig. l0. In another instance, theV spoon-shaped end 52 is provided withV openings sei-ted in the pad. `The functioning of the tongue 39 will be the same as the tongue heretofore described. In another instance, a two-part tongue 40 having arms 4|, 42 may be secured to a core 43 in pad 44, as shown in Fig. V12, and the two partspass'ed thru an opening Y45 inthe arm as shown in Fig. 9, andsplit and Vbent in opposite directions Vinto a recess 46 or 41 located an arm having a spoon-shaped end 48 with an opening 49 and a notch in itsend 50 for the reception of an end 5| of the tongue bentV as 53 and 54 for the reception of atongue passed up thru one opening and into the other opening, as illustrated in Fig. 11.

' A still further modification of the construction Y may consist in so providing the opening that. the arm and pad will beat right angles to each other, such ,for instance as shown in Fig. 15 and in section in Fig. 16. Inrthis case, an opening is provided for the reception of a tongue55 and a notch 56, also for the reception of the end of the tongue which is led thru the opening and back as at 51 into thenotch 56, as clearly shown f in Fig: 15.

Bythis manner of formation, the tongue which is Aof bendable metal may be passed thru an opening and bent Vto retain it therein while the tongue is permitted a certain rocking movement and limited in its rotation or lateral rocking movement. Should the pad need changing this back thru the openingthru which it extends to readily detach the pad` fromitsmountedposition and a new pad substituted therefor.

,In forming the arm which is of plated material, the tools will be so formed as to draw the Vgold plated Ymaterial over the end of the arm, as shown in Fig. 18 at 6|,rand this will also take place Vin cutting off the tongue. In other words-there is a pinching operation rather than a. cutting. operation in the formation of this plated stock. The only portion of the stock of the mounting, which is not covered by plate is the edge of the opening or holer29 and Ythis has the gold tongue contacting therewith, which serves to reduce corrosion.

'Ihe foregoing description is directed solelytowards the construction illustrated, but Iv desire it to 'be understood that I reserve the privilege of resorting to all the mechanical changesto which the deviceis susceptible, kthe invention beingde;

ned and limited only by the terms ofthe appendedkclaims. y

I claim:

1. In an ophthalmic mounting,fa nosepad,was.

. tongue may be readily straightened up and passed of the tongue being so shaped as to permit movement of the arm therealong. Y

2In an ophthalmic mounting, a nose pada Y tongue extending from the rear face thereof,

arm having a generally vertical end with an opening therein thru which said tongue extends, a recess extending longitudinallyV of the end portion of said armrfrom said opening and the tip .0; said tongue being bent into said recess at a'poi'nt spaced from said opening to contactsaid arm` 3. In an yophthalmic mountinga nose pad having a bendable tongue extending-from the'frfearv surface thereof, an arm having an opening/thru which the tongue extends,"and means lon 'the tongueto determine a definite point ofbending of said tongue at a point spaced from said pad a distance greater than the thicknessl of said annV Yat Y the point where said opening occurs.

4.'V In an ophthalmic mounting, a nose pad, `a.-

pad-supporting arm, va, single tongue providedon said pad, and said arm provided with an opening thru which said tongue extends, 'said tongue being bent to'engage said armV at onelocation tov determine a pivotal pointand extendingfr'om said pivotal point at an angle to said padfor 75 rocking of said pad about said pivotal point with reference to said arm.

5. In an ophthalmic mounting, a complete nose pad, an arm, a tongue of a single thickness of metal provided on said pad and materially more bendable than said pad or arm and said arm being provided with' an opening through which said tongue extends, said tongue being bendable for attachment or detachment of the entire nose pad to or from said arm, said tongue and opening being correspondingly shaped and each having a Width greater than its thickness to permit rocking of the parts in a direction longitudinally of the pad, and to prevent the same from rocking in 15 a direction laterally of the pad.

6, In an ophthalmic mounting, a complete nose pad, a pair of parts comprising an arm and a tongue, said tongue being materially more bendable than said pad or arm and adapted to be bent readily in a direction longitudinally of the pad and fixed to one of said parts, the other of said. parts being provided with an opening through which said tongue extends, said tongue being bendable for attachment or detachment of the entire nose pad to or from said arm, said tongue and opening being correspondingly shaped and each having a Width greater than its thickness to permit rocking of the parts in a direction longitudinally oi the pad and to prevent the parts from rocking in a direction laterally of the pad.v

CHARLES W. JOHNSON. 

